Desenvolvimento de novas tecnologias aplicáveis a produção de cloroálcalis no Brasil frente as necessidades ambientais atuais: Uma revisão bibliográfica

Abstract

The discussion on the chlor-alkali industry, a supplier of intermediate inputs for the chemical industry and several other industrial sectors, was restricted to specialists. The present work, considering its economic importance and the great environmental controversies it entails, aimed to contribute to a greater dissemination of knowledge about the sector and to facilitate the reference of the main problems that must be faced. Thus, this work carried out a bibliographic review on the development of new technologies applicable to the production of chlor-alkali in Brazil in view of current environmental needs. In addition, this work presents the technologies currently used in the chlorine-soda production process and the environmental controls that mercury and diaphragm technologies need to pass. The bibliographic review model of this work was composed of three phases: planning, execution and analysis of results. And from these three phases and the exclusion criteria, it was possible to identify three works for this bibliographic review. In these works, the development and evaluation of thirty-five types of polymeric diaphragms applicable to the production of chlor-alkali was observed. And the possibility of developing other types of synthetic diaphragm technologies, competitive in the market, both in terms of performance and the cost/benefit ratio, was highlighted.